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Democratic candidate Jon Ossoff speaks with Perry Taylor, Jr. while visiting his Sandy Springs, Georgia office to thank volunteers for his Georgia's 6th Congressional District campaign on June 17, 2017.

A special congressional election in Georgia is currently billing at an estimated $40 million and counting between Democrat Jon Ossoff and Republican Karen Handel, reported NBC News.

The 6th congressional district has been held by Newt Gingrich, Sen. Johnny Isakson (R-GA), and Health and Human Services Secretary Tom Price, who left the seat open when he joined Trump’s Cabinet.

So when the contest heated up, people paid attention — partly because it is seen as a referendum on Trump and possibly an early indicator of how the midterm elections could go next year.

A special congressional election in Georgia is currently billing at an estimated $40 million and counting between Democrat Jon Ossoff and Republican Karen Handel, making it easily the most expensive in history, NBC News reported.

The 6th congressional district has been held by Newt Gingrich; Sen. Johnny Isakson, R-Ga., and Health and Human Services Secretary Tom Price, who left the seat open when he joined Trump’s Cabinet.

So when the contest heated up, people paid attention — partly because it is seen as a referendum on Trump and possibly an early indicator of how the midterm elections could go next year.

"Democrats saw an opportunity, so they went all in," said Randy Evans, a Republican National Committeeman from Georgia. "Republicans have responded by saying, ‘That’s our seat, it’s a historic seat, we’re going to go all in.’ And when we you have both teams go all in, it becomes one of these unique historic moments."